Thexyltrichlorosilane is primarily used as a surface treatment agent in the manufacturing of hydrophobic coatings. It is applied to glass, ceramics, and metals to create water-repellent surfaces, enhancing durability and resistance to environmental factors. In the electronics industry, it is utilized to modify surfaces of semiconductors and other components to improve performance and stability. Additionally, it serves as a key intermediate in the synthesis of organosilicon compounds, which are essential in various industrial applications, including adhesives, sealants, and resins. Its ability to form strong bonds with substrates makes it valuable in creating protective layers that resist moisture, corrosion, and wear.